Leaves abaxially densely rusty yellow or rust colored, rarely rufous tomentose; terminal inflorescences short subracemes, rarely cymose panicles, with few flowers.

• 叶背面密被锈色黄的或锈色，很少红棕色被绒毛；顶生的花序短近总状花序，很少密伞圆锥花序，具很少花。(56